/// <summary>Sets the vertices of this box to that specified by the given block
/// but clipped to fit within a boundary.</summary>
/// <param name="boundary">The clipping boundary. The vertices will be clipped to within this.</param>
/// <param name="block">The position of the vertices.</param>
/// <param name="zIndex">The depth of the vertices.</param>
public void SetClipped(BoxRegion boundary, BoxRegion block, Renderman renderer, float zIndex)
{
// Clipping with no image/ affect on UVs:
block.ClipBy(boundary);
// And just apply the result:
ApplyVertices(block, renderer, zIndex);
}
/// <summary>This locates the vertices of this block in world space to the position defined by the given box.</summary>
/// <param name="block">The position of the vertices in screen coordinates.</param>
/// <param name="renderer">The renderer used when rendering this block.</param>
/// <param name="zIndex">The depth of the vertices.</param>
internal void ApplyVertices(BoxRegion block, Renderman renderer, float zIndex)
{
// Compute the min/max pixels:
Vector3 min = renderer.PixelToWorldUnit(block.X, block.Y, zIndex);
Vector3 max = renderer.PixelToWorldUnit(block.MaxX, block.MaxY, zIndex);
// Get the 4 corners:
VertexTopLeft = min;
VertexBottomRight = max;
VertexTopRight = new Vector3(max.x, min.y, min.z);
VertexBottomLeft = new Vector3(min.x, max.y, min.z);
}
/// <summary>This locates the vertices of this block in world space to the position defined by the given box.</summary>
/// <param name="block">The position of the vertices in screen coordinates.</param>
/// <param name="renderer">The renderer used when rendering this block.</param>
/// <param name="zIndex">The depth of the vertices.</param>
private void ApplyVertices(BoxRegion block,Renderman renderer,float zIndex){
// Compute the min/max pixels:
Vector3 min=renderer.PixelToWorldUnit(block.X,block.Y,zIndex);
Vector3 max=renderer.PixelToWorldUnit(block.MaxX,block.MaxY,zIndex);
// Get the 4 corners:
VertexTopLeft=min;
VertexBottomRight=max;
VertexTopRight=new Vector3(max.x,min.y,min.z);
VertexBottomLeft=new Vector3(min.x,max.y,min.z);
}
/// <summary>Sets the vertices of this box to that specified by the given block
/// but clipped to fit within a boundary. At the same time, an image is applied
/// to the block and its UV coordinates are also clipped.</summary>
/// <param name="boundary">The clipping boundary. The vertices will be clipped to within this.</param>
/// <param name="block">The position of the vertices.</param>
/// <param name="renderer">The renderer that will render this block.</param>
/// <param name="zIndex">The depth of the vertices.</param>
/// <param name="imgLocation">The location of the image on the meshes atlas.</param>
public UVBlock SetClipped(BoxRegion boundary,BoxRegion block,Renderman renderer,float zIndex,AtlasLocation imgLocation,UVBlock uvBlock){
// Image defines how big we want the image to be in pixels on the screen.
// So firstly we need to find the ratio of how scaled our image actually is:
float originalHeight=block.Height;
float scaleX=imgLocation.Width/block.Width;
float scaleY=imgLocation.Height/originalHeight;
// We'll need to clip block and make sure the image block is clipped too:
float blockX=block.X;
float blockY=block.Y;
if(block.ClipByChecked(boundary)){
// It actually got clipped - time to do some UV clipping too.
// Apply the verts:
ApplyVertices(block,renderer,zIndex);
block.X-=blockX;
block.Y-=blockY;
block.MaxX-=blockX;
block.MaxY-=blockY;
// Flip the gaps (the clipped and now 'missing' sections) - UV's are inverted relative to the vertices.
// Bottom gap is just block.Y:
float bottomGap=block.Y;
// Top gap is the original height - the new maximum; write it to the bottom gap:
block.Y=originalHeight-block.MaxY;
// Update the top gap:
block.MaxY=originalHeight-bottomGap;
// Image was in terms of real screen pixels, so now we need to scale it to being in 'actual image' pixels.
// From there, the region
block.X*=scaleX;
block.MaxX*=scaleX;
block.Y*=scaleY;
block.MaxY*=scaleY;
if(uvBlock==null || uvBlock.Shared){
// Create the UV block:
uvBlock=new UVBlock();
}
// Get the new max/min values:
uvBlock.MinX=imgLocation.GetU(block.X+0.2f);
uvBlock.MaxX=imgLocation.GetU(block.MaxX-0.2f);
uvBlock.MaxY=imgLocation.GetV(block.MaxY-0.2f);
uvBlock.MinY=imgLocation.GetV(block.Y+0.2f);
}else{
// Apply the verts:
ApplyVertices(block,renderer,zIndex);
// Globally share the UV!
uvBlock=imgLocation;
}
return uvBlock;
}
/// <summary>Sets the vertices of this box to that specified by the given block
/// but clipped to fit within a boundary.</summary>
/// <param name="boundary">The clipping boundary. The vertices will be clipped to within this.</param>
/// <param name="block">The position of the vertices.</param>
/// <param name="zIndex">The depth of the vertices.</param>
public void SetClipped(BoxRegion boundary,BoxRegion block,Renderman renderer,float zIndex){
// Clipping with no image/ affect on UVs:
block.ClipBy(boundary);
// And just apply the result:
ApplyVertices(block,renderer,zIndex);
}
/// <summary>Sets the vertices of this box to that specified by the given block
/// but clipped to fit within a boundary. At the same time, an image is applied
/// to the block and its UV coordinates are also clipped.</summary>
/// <param name="boundary">The clipping boundary. The vertices will be clipped to within this.</param>
/// <param name="block">The position of the vertices.</param>
/// <param name="renderer">The renderer that will render this block.</param>
/// <param name="zIndex">The depth of the vertices.</param>
/// <param name="imgLocation">The location of the image on the meshes atlas.</param>
public UVBlock SetClipped(BoxRegion boundary, BoxRegion block, Renderman renderer, float zIndex, AtlasLocation imgLocation, UVBlock uvBlock)
{
// Image defines how big we want the image to be in pixels on the screen.
// So firstly we need to find the ratio of how scaled our image actually is:
float originalHeight = block.Height;
float scaleX = imgLocation.Width / block.Width;
float scaleY = imgLocation.Height / originalHeight;
// We'll need to clip block and make sure the image block is clipped too:
float blockX = block.X;
float blockY = block.Y;
if (block.ClipByChecked(boundary))
{
// It actually got clipped - time to do some UV clipping too.
// Apply the verts:
ApplyVertices(block, renderer, zIndex);
block.X -= blockX;
block.Y -= blockY;
block.MaxX -= blockX;
block.MaxY -= blockY;
// Flip the gaps (the clipped and now 'missing' sections) - UV's are inverted relative to the vertices.
// Bottom gap is just block.Y:
float bottomGap = block.Y;
// Top gap is the original height - the new maximum; write it to the bottom gap:
block.Y = originalHeight - block.MaxY;
// Update the top gap:
block.MaxY = originalHeight - bottomGap;
// Image was in terms of real screen pixels, so now we need to scale it to being in 'actual image' pixels.
// From there, the region
block.X *= scaleX;
block.MaxX *= scaleX;
block.Y *= scaleY;
block.MaxY *= scaleY;
if (uvBlock == null || uvBlock.Shared)
{
// Create the UV block:
uvBlock = new UVBlock();
}
// Get the new max/min values:
uvBlock.MinX = imgLocation.GetU(block.X + 0.2f);
uvBlock.MaxX = imgLocation.GetU(block.MaxX - 0.2f);
uvBlock.MaxY = imgLocation.GetV(block.MaxY - 0.2f);
uvBlock.MinY = imgLocation.GetV(block.Y + 0.2f);
}
else
{
// Apply the verts:
ApplyVertices(block, renderer, zIndex);
// Globally share the UV!
uvBlock = imgLocation;
}
return(uvBlock);
}
/// <summary>This is the second pass of layout requests.
/// It positions the element in global screen space and also fires the render events
/// which in turn generate or reallocates mesh blocks. This call applies to all it's
/// children elements too.</summary>
/// <param name="relativeTo">The current style we are positioning relative to.</param>
public void PositionGlobally(ComputedStyle relativeTo)
{
ComputedStyle computed = Style.Computed;
if (computed.Display == DisplayType.None)
{
// Don't draw this element or it's kids.
return;
}
// Position globally:
if (computed.Position == PositionType.Fixed)
{
// Fixed elements are nice and simple to deal with - Their essentially absolutely positioned but relative to the html tag.
ComputedStyle html = Document.html.style.Computed;
if (computed.RightPositioned)
{
// The right hand edge of parent minus how far from the edge minus the width.
computed.OffsetLeft = computed.MarginLeft + html.OffsetLeft + html.PixelWidth - computed.PositionRight - computed.PixelWidth;
}
else
{
computed.OffsetLeft = computed.MarginLeft + html.OffsetLeft + computed.PositionLeft;
}
if (computed.BottomPositioned)
{
computed.OffsetTop = computed.MarginTop + html.OffsetTop + html.PixelHeight - computed.PositionBottom - computed.PixelHeight;
}
else
{
computed.OffsetTop = computed.MarginTop + html.OffsetTop + computed.PositionTop;
}
// Change relativeTo here - we are now hopping to this fixed objects kids.
relativeTo = computed;
}
else if (computed.Position == PositionType.Relative)
{
// Relative to where they should have been. PositionLeft/PositionRight etc. may be zero, but not always.
// The width of border/padding/margin + the position of the parent + the offet from the parent.
if (relativeTo == null)
{
computed.OffsetLeft = computed.MarginLeft + computed.ParentOffsetLeft;
}
else
{
computed.OffsetLeft = computed.MarginLeft + relativeTo.StyleOffsetLeft + relativeTo.OffsetLeft + computed.ParentOffsetLeft;
}
if (computed.RightPositioned)
{
computed.OffsetLeft -= computed.PositionRight;
}
else
{
computed.OffsetLeft += computed.PositionLeft;
}
if (relativeTo == null)
{
computed.OffsetTop = computed.MarginTop + computed.ParentOffsetTop;
}
else
{
computed.OffsetTop = computed.MarginTop + relativeTo.StyleOffsetTop + relativeTo.OffsetTop + computed.ParentOffsetTop;
}
if (computed.BottomPositioned)
{
computed.OffsetTop -= computed.PositionBottom;
}
else
{
computed.OffsetTop += computed.PositionTop;
}
// Vertical alignment:
bool tableCell = (computed.Display == DisplayType.TableCell);
if (relativeTo != null || computed.AutoMarginY || tableCell)
{
if (computed.AutoMarginY || relativeTo.VerticalAlign == VerticalAlignType.Middle || (tableCell && computed.VerticalAlign == VerticalAlignType.Middle))
{
// Similar to below - we find the gap, then add *half* of that onto OffsetTop.
if (tableCell)
{
// Move upwards - we're sitting on the line and want to be above it.
computed.OffsetTop -= (relativeTo.InnerHeight - computed.PixelHeight) / 2;
}
else
{
computed.OffsetTop += (relativeTo.InnerHeight - relativeTo.ContentHeight) / 2;
}
}
else if (relativeTo.VerticalAlign == VerticalAlignType.Bottom)
{
// Find the gap - parent height-contentHeight.
// Then simply add that onto offsetTop.
computed.OffsetTop += relativeTo.InnerHeight - relativeTo.ContentHeight;
}
else if (tableCell && computed.VerticalAlign == VerticalAlignType.Top)
{
// This time we find the gap and remove it - we're at the bottom by default as a td sits on the line.
computed.OffsetTop -= relativeTo.InnerHeight - computed.PixelHeight;
}
}
// Note: relativeTo does not change here if we're in an inline element:
if (computed.Display != DisplayType.Inline)
{
relativeTo = computed;
}
}
else
{
// Absolute - relative to parent. It's ParentOffsetLeft/Top are both zero.
if (computed.RightPositioned)
{
// The right hand edge of parent minus how far from the edge minus the width.
computed.OffsetLeft = computed.MarginLeft + relativeTo.OffsetLeft - relativeTo.StyleOffsetLeft - relativeTo.ScrollLeft + relativeTo.PixelWidth - computed.PositionRight - computed.PixelWidth;
}
else
{
computed.OffsetLeft = computed.MarginLeft + relativeTo.OffsetLeft + relativeTo.StyleOffsetLeft + relativeTo.ScrollLeft + computed.PositionLeft;
}
if (computed.BottomPositioned)
{
computed.OffsetTop = computed.MarginTop + relativeTo.OffsetTop - relativeTo.StyleOffsetTop - relativeTo.ScrollTop + relativeTo.PixelHeight - computed.PositionBottom - computed.PixelHeight;
}
else
{
computed.OffsetTop = computed.MarginTop + relativeTo.OffsetTop + relativeTo.StyleOffsetTop + relativeTo.ScrollTop + computed.PositionTop;
}
// Set relativeTo to this - this is because the kids of absolute objects are relative to the absolute object itself.
relativeTo = computed;
}
// Push the transform to our stack, if we have one.
if (computed.Transform != null)
{
// Add it to the stack:
Document.Renderer.Transformations.Push(computed.Transform);
// Update it:
computed.Transform.RecalculateMatrix(computed);
}
// Great, it's good to go!
computed.Render();
if (KidsToRender != null || HScrollbar || VScrollbar)
{
BoxRegion parentBoundary = null;
if (relativeTo == computed)
{
// We changed who we're relative to.
// Change the clipping boundary:
Renderman renderer = Document.Renderer;
parentBoundary = renderer.ClippingBoundary;
renderer.SetBoundary(computed);
}
if (KidsToRender != null)
{
for (int i = 0; i < KidsToRender.Count; i++)
{
Element child = KidsToRender[i];
if (child != null)
{
child.PositionGlobally(relativeTo);
}
}
}
if (HScrollbar)
{
HorizontalScrollbar.Element.PositionGlobally(relativeTo);
}
if (VScrollbar)
{
VerticalScrollbar.Element.PositionGlobally(relativeTo);
}
if (relativeTo == computed)
{
// Restore the previous boundary before this one: [Note - can't use SetBoundary here as it would destroy the box.]
Document.Renderer.ClippingBoundary = parentBoundary;
}
}
if (computed.Transform != null)
{
// Pop it off again:
Document.Renderer.Transformations.Pop();
}
}
/// <summary>Sets the clipping boundary from the given computed style.</summary>
/// <param name="style">The computed style to find the clipping boundary from.</param>
public void SetBoundary(ComputedStyle style){
bool visibleX=(style.OverflowX==OverflowType.Visible);
bool visibleY=(style.OverflowY==OverflowType.Visible);
if(visibleX && visibleY){
return;
}
BoxRegion newBoundary=null;
if(visibleX){
newBoundary=new BoxRegion(ClippingBoundary.X,style.OffsetTop+style.StyleOffsetTop+style.ScrollTop,ClippingBoundary.Width,style.InnerHeight);
}else if(visibleY){
newBoundary=new BoxRegion(style.OffsetLeft+style.StyleOffsetLeft+style.ScrollLeft,ClippingBoundary.Y,style.InnerWidth,ClippingBoundary.Height);
}else{
newBoundary=new BoxRegion(style.OffsetLeft+style.StyleOffsetLeft+style.ScrollLeft,style.OffsetTop+style.StyleOffsetTop+style.ScrollTop,style.InnerWidth,style.InnerHeight);
}
if(style.Clip){
newBoundary.ClipBy(ClippingBoundary);
}
ClippingBoundary=newBoundary;
}
/// <summary>Creates a new renderer and a new document.</summary>
public Renderman(){
ClippingBoundary=new BoxRegion(0,0,Screen.width,Screen.height);
RootDocument=new Document(this);
RootDocument.location=new FilePath("resources://","",false);
}
